Paul Keating was Australia's 24th Prime Minister, and of the Australian Labor Party (ALP). He held office between 1991-1996. He was also Australia's Federal Treasurer from 1981 - 1991.
A power of attorney varies depending on the document. It can be limited by dates or circumstances. In no case will it go past the death of the person granting the power of attorney.
It depends on the power of attorney, which is required to state whether it is permanent or temporary. If it is temporary, it's required to state how long it will remain in effect.